#!/bin/sh
set -eu

: "${SKILLHUB_WEB_API_BASE_URL:=}"
: "${SKILLHUB_PUBLIC_BASE_URL:=}"
: "${SKILLHUB_WEB_AUTH_DIRECT_ENABLED:=false}"
: "${SKILLHUB_WEB_AUTH_DIRECT_PROVIDER:=}"

# Session-bootstrap variables are defaulted here so envsubst writes
# `authSessionBootstrapEnabled: "false"` into runtime-config.js instead of leaving
# the literal `${...}` placeholder. They are intentionally NOT exposed in
# compose.release.yml or .env.release.example: the matching server-side switch
# does not exist yet, so surfacing the toggle would let the frontend hit
# /api/v1/auth/session/bootstrap and receive 403. See PR #280 discussion.
: "${SKILLHUB_WEB_AUTH_SESSION_BOOTSTRAP_ENABLED:=false}"
: "${SKILLHUB_WEB_AUTH_SESSION_BOOTSTRAP_PROVIDER:=}"
: "${SKILLHUB_WEB_AUTH_SESSION_BOOTSTRAP_AUTO:=false}"

# Generate runtime-config.js
envsubst '${SKILLHUB_WEB_API_BASE_URL} ${SKILLHUB_PUBLIC_BASE_URL} ${SKILLHUB_WEB_AUTH_DIRECT_ENABLED} ${SKILLHUB_WEB_AUTH_DIRECT_PROVIDER} ${SKILLHUB_WEB_AUTH_SESSION_BOOTSTRAP_ENABLED} ${SKILLHUB_WEB_AUTH_SESSION_BOOTSTRAP_PROVIDER} ${SKILLHUB_WEB_AUTH_SESSION_BOOTSTRAP_AUTO}' \
  < /usr/share/nginx/html/runtime-config.js.template \
  > /usr/share/nginx/html/runtime-config.js

# The guide derives its registry from the URL used to fetch it. Keep a Host
# allowlist on the public route, but do not embed a second source of truth in
# the document body.
guide_url_config="${SKILLHUB_NGINX_GUIDE_URL_CONFIG:-/etc/nginx/skillhub-guide-public-url.conf}"
printf '%s\n' \
  'if ($http_host !~ "^(?:[A-Za-z0-9.-]+|\\[[0-9A-Fa-f:.]+\\])(?::[0-9]{1,5})?$") { return 400; }' \
  > "$guide_url_config"
cp /usr/share/nginx/html/registry/skill.md.template \
  /usr/share/nginx/html/registry/skill.md